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Olegator [25]
3 years ago
11

3x-9=2x+4 solve this equation

Mathematics
1 answer:
alina1380 [7]3 years ago
5 0

Answer:

3x-9=2x+4

-2x    -2x

x - 9 = 4

  + 9   +9

<h2>x = 13</h2>

First isolate the variable into one side.

Then simplify like terms.

Hope this helps.

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Help! this is hard :(( (10 points) :c
Cerrena [4.2K]
If I understand correctly, just substitute 15 for C in f = 1.8c + 32, then solve for F
-------------------
f=<span><span>(1.8)(15)</span>+<span>32
</span></span>------------
Simplify
f=<span><span><span>(1.8)</span><span>(15)</span></span>+<span>32
</span></span>f = 27 + 32
f = 59 is your answer

5 0
3 years ago
Read 2 more answers
A cylinder has a circular base with a diameter of 12 ft the height of the cylinder is 4 feet what is the volume of the cylinder
Murrr4er [49]

Answer:

452\ ft^{3}

Step-by-step explanation:

we know that

The volume of a cylinder is equal to

V=\pi r^{2} h

we have

r=12/2=6\ ft ----> the radius is half the diameter

h=4\ ft

substitute the values

V=(3.14)(6^{2})(4)=452\ ft^{3}

5 0
3 years ago
Solve the system of linear equations by adding or subtracting. Show all work!
Thepotemich [5.8K]

Answer:

x = -2, y = -2

Step-by-step explanation:

Your goal is to try and cancel out a variable. I want to get rid of y so i subtracted the first equation from the second one.

After that I solve for x and got x=-2.

I used x=-2 and plugged it back into either of the equation to solve for y.

4 0
3 years ago
Can you give me an equation that equals to 31
lys-0071 [83]
There are m any examples of equations that equal 31. Here are a few:
17 + 14
30 + 1
60 - 29

I like this one though (its 2 step)

(15 x 2) + 1

Hope this helped :)
7 0
3 years ago
Read 2 more answers
The ratio of boys to girls at the dance was 8 to 4. How many girls were at the dance if there were 88 boys at the dance?
nevsk [136]

88/8=11.

So multiply 4 by 11.

4x11=44

So the ratio is 88:44.

There are 44 girls at the dance

---

hope it helps

5 0
3 years ago
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